 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.update.operations;

 import org.eclipse.update.configuration.*;
 import org.eclipse.update.core.*;

 /**
  * An operation that applies to a feature, such as install, uninstall, etc.
  * <p>
  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  * </p>
  * @since 3.0
  */
 public interface IFeatureOperation extends IOperation {
     /**
      * Returns the feature to operate on.
      * @return the feature to operate on.
      */
     public abstract IFeature getFeature();
     /**
      * Returns the site in which the operation is applied.
      * @return the site that owns or will own the feature.
      */
     public abstract IConfiguredSite getTargetSite();
     /**
      * Returns the previous version of the feature (if any).
      * @return the previous installed version of a feature (if any).
      */
     public abstract IFeature getOldFeature();
     /**
      * Sets the site in which the feature is being operated on.
      * @param targetSite the site in which the featre is being operated on.
      */
     public abstract void setTargetSite(IConfiguredSite targetSite);
 }

